package com.itheima.pattern.bridge;


// 抽象化角色：抽象的操作系统类
public abstract class OperatingSystem {

    // 声明 videoFile 变量
    protected VideoFile videoFile;

    public OperatingSystem(VideoFile videoFile) {
        this.videoFile = videoFile;
    }

    public abstract void play(String fileName);
}
